Wednesday, December 16, 2009

What exactly is vegetable oil made out of?

As far as I know, vegetables don't contain oil (I could be wrong) so where does vegetable oil come from? What is it? Does anyone really know?What exactly is vegetable oil made out of?
sunflowers, soybeans, canola, flax, a bit from corn, some from other specialty crops. The seed from these crops is crushed and then spun at high speeds sort of like your dryers spin cycle and the oil comes out and is collected. the meal left over can be crushed even more to extract the last of the oil and then fed to animals as a high protein suplement.What exactly is vegetable oil made out of?
Where did you get the idea that vegetables don't contain oil? If that were true, vegans would die from lack of fat (oil) in their diets. Vegetables are not a source of cholesterol, that's only in animal products, but almost all vegetables contain some oil. Most oil is concentrated in the seeds of plants, so you get oil from cotton seeds, corn (which are the seeds of the corn plant), sunflower seeds, palm kernel (kernel means seed), soybeans (a bean is a seed), canola (also known as rapeseed), grape seeds, sesame seeds, peanuts, walnuts, etc. I've even got some green tea oil! There's oils in coffee beans and tea leaves that come out in the brewing process.





There are vegetables whose flesh contains oil, notably avocado, and olives (though both are technically fruits), both of which are used to obtain oil. Carrots even have oil, some Burt's Bee's products contain carrot oil.





The ';modern'; way of processing vegetable oil is by chemical extraction, using solvent extracts, which produces higher yields and is quicker and less expensive. The most common solvent is petroleum-derived hexane. This technique is used for most of the ';newer'; industrial oils such as soybean and corn oils. Some oil is still pressed oil, spun/centrifuged out, and they even use heat to get the most oil out of the seeds, etc. For instance, 'extra virgin' olive oil is from the first pressing, subsequent pressings have more of the olive flesh in them, until you get to pomace oil (the final extraction), which has a very strong color and olive flavor due to the amount of olive flesh in it, which is generally reserved for making soap from. Some bakeries use pomace oil because it's cheaper, and because it gives a distinct olive taste to the things prepared with it, proof that they've actually used olive oil.





Fragrance oils generally come from vegetables and fruits, too, go to any aromatherapy site and you'll see the vast array of oils available. Essential oils are plant oils extracted by distillation. The principal uses of essential oils are as flavoring agents, and medical and aromatherapy applications. Essential oils should not be confused with macerated oils, where plant materials are infused in a base oil. Tarragon oil, for example, is oil distilled from the tarragon plant. Tarragon leaves in olive oil are sometimes used in cooking, and can also be called tarragon oil.
for example, corn. It is pressed (probably heated first) and an oil emerges. Same for sunflowers.
most commonly it is soybean oil
Oil from vegetables.

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